I guess I have no need to feel responsible for your seeming lack of quality research on the topic.
You know, the whole UFO topic is easy to laugh at. The debunkers have debunked a large percentage of the sightings. Yet, there's still that one percent; seen by some highly qualified people whose word is beyond question, it does make me wonder.
How likely is it that we are the only intelligent life in the universe? If there are hundreds of billions of planets as some scientists project, might not one of them be millions of years ahead of us in technology?
Could those beings come here?